High Pressure Die Casting

High pressure die casting, also known as high pressure die casting or HPDC for short, is an extremely efficient production process in which molten aluminium alloys are shot into a mould under high pressure to make a product. High-pressure die casting often uses aluminium alloys that are shot into hardened steel moulds under pressures of 100 to 3,000 tons. This enormous pressure allows the liquid aluminium to work its way well into every nook and cranny of the most complex moulds. Through the use of these enormous pressures, the molten aluminium fills the moulds very precisely, making it easy to make complex and thin-walled shapes, so that in most cases, post-processing is unnecessary. There are of course exceptions such as threading.

With high-pressure injection moulding, products can be produced on the assembly line, so that series sizes of 1,000 to 1,000,000 are no strange numbers. Due to the high numbers of the series and the speed of production, production costs are relatively low. It does, however, require a complex mould that can last for more than 50,000 shots.